Clamp.



No. 803,668. PATENTED NOV. 7, 1905. w. H. GLENDENON.

CLAMP.

APPLIGATIONIILED SEPT. 30. 1904.

Witnesses:

UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Nov. 7, 1905.

-Application filed September 30, 1904. Serial No. 226,718.

To all whom it may concern:-

Be it known that LWILLIAM H. CLENDENON, a citizen of the United States,residing at Healdsburg, in the county of Sonoma and State of California,have invented a new and useful Clamp, of which the following is aspecification.

This invention relates to clamps.

The object of the invention is to present a clamp for use by mechanicsin holding articles of work together while being operated upon, saidclamp being adapted for ready application to and removal from the workand necessitating only the use of one hand for the purpose; furthermore,to render unnecessary the employment of a screw for causing theclamping-jaws to approach the work, and, finally, to cause the jawssquarely to engage the work whether the opposite faces thereof be inparallelism or be disposed at an angle to each other.

The invention consists in the novel construction and combination, ofparts of a handclamp, as will be hereinafter fully described andclaimed.

In the accompanying drawings, forming a part of this, specification, andin which like characters of reference indicate corresponding parts,there is illustrated one form of embodiment of the invention capable ofcarrying the same into practical operation, it being understood that theelements therein exhibited may be varied or changed as to shape,proportion, and exact manner of assemblage without departing from thespirit thereof.

In the drawings, Figure l is a view in perspective of a clampconstructed in accordance with the present invention. Fig. 2 is afragmentary detail view, partly in section, of the jaw portion of theclamp.

Referring to the drawings, 1 and 2 designate two levers, which areconnected intermediate of their ends by a pivot 3, which passes througha knuckle or rule'joint 4 of the usual construction. The lower ends ofthe levers are curved outward and form handles 5 and 6, the upper endsof the levers being curved inward to form arms 7 and 8, the terminals ofwhich are bifurcated at 9.

The levers are constructed, preferably, of cast metal, such as iron orsteel, and are provided on both sides throughout practically theirentire length with flanges 10, the intermediate portions of the leversbeing formed with openings 11, which are provided for the purpose oflightening the structure, the

flanges 10 operating to reinforce the levers in a manner that will bereadily understood.

Pivoted at 12 within the recesses 9 of the levers are clamping-jaws13,each of which is provided with a reduced shank or tenon 14 to fit withinthe recesses 9 and to be held for rocking movement therein by the pivots12. The pivotal connection between the jaws and the arms is such thatthe former will readily adjust themselves to the surfaces with whichthey contact, so that in the event that the clamp is applied to a pieceof work having one side disposed at an angle to the other side directcontact between the two jaws and the work will be secured.

The jawsare normally held in contact with each other by means of a pairof coiled springs 15, the terminal whirls of which are bent to formhooks 16. which fit around headed pintles l7, projecting laterally fromeach side of the lever, these pintles being provided with enlarged bases18, that operate to hold the springsout of contact with each other. Thepintles are preferably cast integral with the levers; but, if preferred,they may be made as separate articles and secured thereto.

The'clamp as a wholeis exceedingly simple of construction and is readilyand cheaply manufactured, and owing to the manner in which its parts areconstructed and assembled danger of derangement in use is reduced to aminimum.

Having thus described the invention, what is claimed is- A clampembodying two levers connected intermediate of their ends, the leversbeing curved inward on one side of the joint and on the opposite sidebeing bent outward, said levers comprising in cross-section a web havingside flanges at its edges and being perforated to secure strength inboth directions and also lightness, pivoted jaws carried by theterminals of the curved'portions of the levers, integral teats alsocarried by the curved portions and projecting laterally from each sidethereof and formed with enlarged bases, and coiled springs having theirterminal whirls in engagement with the teats and held out of contactwith each other of the teat-bases.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

. WILLIAM H. CLENDEN ON. Witnesses:

WILLIAM H. BARNES, EDWARD J. HYMAN.

